Significant Group Concentrations Of Risk (Details) (USD $) In Millions, unless otherwise specified			12 Months Ended						12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Workforce Subject To Collective Bargaining Arrangements [Member]	Dec. 31, 2012 Workforce Subject To Collective Bargaining Arrangements [Member] SPEEA [Member]	Dec. 31, 2012 External Credit Rating, Non Investment Grade [Member]	Dec. 31, 2012 Commercial Aircraft Customers [Member]	Dec. 31, 2012 U S Government Contracts [Member]	Dec. 31, 2011 U S Government Contracts [Member]	Dec. 31, 2012 American Airlines [Member]	Dec. 31, 2012 United/Continental Airlines [Member]	Dec. 31, 2012 Hawaiian Airlines [Member]
Concentration Risk [Line Items]
Gross accounts receivable and gross customer financing	$ 10,170					$ 4,921
Accounts Receivable, Gross, Current						803	2,788	2,950
Gross customer financing	$ 4,480	$ 4,842			$ 2,827	$ 4,118
Concentration Risk, Percentage			39.00%	13.00%					12.00%	9.00%	8.00%